420 4000 GPD Reverse Osmosis Collection

420 Water Systems 4000 GPD is our line of economical Reverse Osmosis Systems and Carbon Systems. Each system is comes complete with lots of options. Just to name a few, UV, Blending Valve, Wired and plumbed for Anti-Scalant, Free Shipping in the Continental United States and Built in the USA. The E-Series can be ordered with Float Switch or Pressure Switch Controlled. All Pressure switch controlled come with a 44 Gallon RO pressure tank.